Skyrmions in the presence of isospin chemical potential
- Autores
- Ponciano, Juan Adolfo; Scoccola, Norberto Nerio
- Año de publicación
- 2008
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We analyze the existence of localized finite energy topological excitations on top of the perturbative pion vacuum within the Skyrme model at finite isospin chemical potential and finite pion mass. We show that there is a critical isospin chemical potential μIc above which such solutions cease to exist. We find that μIc is closely related to the value of the pion mass. In particular for vanishing pion mass we obtain μIc = 0 in contradiction with some results recently reported in the literature. We also find that below μIc the skyrmion mass and baryon radius show, at least for the case of the hedgehog ansatz, only a mild dependence on the isospin chemical potential.
Facultad de Ciencias Astronómicas y Geofísicas - Materia
-
Física
Piones
Isospin - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by/4.0/
- Repositorio
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/83057
Ver los metadatos del registro completo
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Skyrmions in the presence of isospin chemical potentialPonciano, Juan AdolfoScoccola, Norberto NerioFísicaPionesIsospinWe analyze the existence of localized finite energy topological excitations on top of the perturbative pion vacuum within the Skyrme model at finite isospin chemical potential and finite pion mass. We show that there is a critical isospin chemical potential μIc above which such solutions cease to exist. We find that μIc is closely related to the value of the pion mass. In particular for vanishing pion mass we obtain μIc = 0 in contradiction with some results recently reported in the literature. We also find that below μIc the skyrmion mass and baryon radius show, at least for the case of the hedgehog ansatz, only a mild dependence on the isospin chemical potential.Facultad de Ciencias Astronómicas y Geofísicas2008info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf551-554http://sedici.unlp.edu.ar/handle/10915/83057enginfo:eu-repo/semantics/altIdentifier/issn/0370-2693info:eu-repo/semantics/altIdentifier/doi/10.1016/j.physletb.2007.11.047info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:15:41Zoai:sedici.unlp.edu.ar:10915/83057Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:15:41.334SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
Skyrmions in the presence of isospin chemical potential |
| title |
Skyrmions in the presence of isospin chemical potential |
| spellingShingle |
Skyrmions in the presence of isospin chemical potential Ponciano, Juan Adolfo Física Piones Isospin |
| title_short |
Skyrmions in the presence of isospin chemical potential |
| title_full |
Skyrmions in the presence of isospin chemical potential |
| title_fullStr |
Skyrmions in the presence of isospin chemical potential |
| title_full_unstemmed |
Skyrmions in the presence of isospin chemical potential |
| title_sort |
Skyrmions in the presence of isospin chemical potential |
| dc.creator.none.fl_str_mv |
Ponciano, Juan Adolfo Scoccola, Norberto Nerio |
| author |
Ponciano, Juan Adolfo |
| author_facet |
Ponciano, Juan Adolfo Scoccola, Norberto Nerio |
| author_role |
author |
| author2 |
Scoccola, Norberto Nerio |
| author2_role |
author |
| dc.subject.none.fl_str_mv |
Física Piones Isospin |
| topic |
Física Piones Isospin |
| dc.description.none.fl_txt_mv |
We analyze the existence of localized finite energy topological excitations on top of the perturbative pion vacuum within the Skyrme model at finite isospin chemical potential and finite pion mass. We show that there is a critical isospin chemical potential μIc above which such solutions cease to exist. We find that μIc is closely related to the value of the pion mass. In particular for vanishing pion mass we obtain μIc = 0 in contradiction with some results recently reported in the literature. We also find that below μIc the skyrmion mass and baryon radius show, at least for the case of the hedgehog ansatz, only a mild dependence on the isospin chemical potential. Facultad de Ciencias Astronómicas y Geofísicas |
| description |
We analyze the existence of localized finite energy topological excitations on top of the perturbative pion vacuum within the Skyrme model at finite isospin chemical potential and finite pion mass. We show that there is a critical isospin chemical potential μIc above which such solutions cease to exist. We find that μIc is closely related to the value of the pion mass. In particular for vanishing pion mass we obtain μIc = 0 in contradiction with some results recently reported in the literature. We also find that below μIc the skyrmion mass and baryon radius show, at least for the case of the hedgehog ansatz, only a mild dependence on the isospin chemical potential. |
| publishDate |
2008 |
| dc.date.none.fl_str_mv |
2008 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
| format |
article |
| status_str |
publishedVersion |
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http://sedici.unlp.edu.ar/handle/10915/83057 |
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http://sedici.unlp.edu.ar/handle/10915/83057 |
| dc.language.none.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/issn/0370-2693 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.physletb.2007.11.047 |
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info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
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openAccess |
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http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
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application/pdf 551-554 |
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